Zigzag hide-cutting machine



W. KWASH.

ZIGZAG HIDE CUTTING MACHINE- APPLlCATlON FILED JUNE 10' 1920;

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W. KWASH.

ZIGZAG HIDE CUTTING MACHINE.

APPLlC AT ON FILED JUNE 10, 1920- Patented Feb.22 ,1921.

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To all whomit may concern:

Be it. known that LWnnzrl KwAsH, a citizen of Bohemia, and a resident ofDes Moines, in the county of Polkand State of Iowa, United StatesofAmerica,v have invented a certain new and useful Zigzag Hide-CuttingMachine, of, which the follow- ,ing is aspecification. 4

The object of my invention is to provlde a machine'for cuttinghideswhich havethe hair thereon, on zig zag lines-without cutting thehair. V 1; 1

More particularly it is my object to provide such a machine includingcoacting cut- Y other when the upper shaft is in its lowere'dtingmembers adapted to cut-hides on zig zag lines, and to provide-means formounting said members whereby they may be supported in a varietyofdifferent positions, which Ineansis adapted to support one'or moresets of said cutting members, and adapted to be adjusted for the readyand easy removal or interchange of the cutting members.

With these and other objects in view, my

invention consists in the construction, ar-

' rangement and combination of the various parts of the devicerwherebythe objects con templated are attained, as hereinafter more fully setforth, pointed out in my claims," and: illustrated in'the accompanyingdrawings, in which:

, Figure 1. showsa front elevation of a zig zag hide cutting machlneembodymgi'mymvention. V I 1 Fig. 2 shows a vertical sectional view takenon the line 22 of Fig. 1. i

- Fi 3 shows a detail sectional view .taken' on th e line 3-3 of Fig. 1.3

V Fig. 4: shows a front elevation of one of the cutting knives or die,members. 1.

Fig. -5 shows-an. end elevation of the ma chine. A 11 Fig. 6. shows aplan'view-of the machine.

Fig. 7 shows adetail sectional view taken 'on the line 7-7 of Fig. 1{and Fig.- 8 shows a frontelevation ofthe coacting cutting members ordies, the upper cutting member being of slightly different form fromthat shown in Fig. 41.

In the drawings herewith; which -illus trate' a'form' in which myinvention may be embodied, I have used the reference nu meral 10to-indicatea base ,'in which is mounted thelower end of a hollow upright11. A portion of the upright 11 is cut away,

Specification of was Patent.

I Application firearm -10,1920. Serial no, 288,000. g

j as at. 12 (Fig. 1) leaving a recess, and in ,such recess 1s mounteda'motor 13. Above I the recess 12 are opposite: recesses 15 and.;16 .1

in the upright 11.

spindles 17 and 18. The endsof the spindles ratenteurep; 2 2',

Extending through the walls of: the 'upr1ght 11, opposite the recesses15 and 16, are

horizontal position, as illustrated, for in] stance, in Fig. 1.Thejshaft;22 projects 'be- .yond the pinion2 1, and has thereon asprocket 26 in line Wlth'fi, sprocketz27 on the motor shaft. On thesprockets 26 and shaft 22.

, Pivoted in the lower'wportioniof the mem- 7 her 11 is a brace 29,which extends upwardly and laterally to the right, as shown in Fig;

1. The brace 29 extends-to a point to the left of the pivot 30 of saidbrace, and is connected ,with an expansion spring; 81

which tends tov hold the brace in its raised position, but topermit thebrace to, belowi ered against the pressure'of the-spring.

The upper bearing memberB is fastened in position by means of a cotterpin 35,

i 27 is a chain 28, by means ofwhich power 1s transmitted from the motorshaft tothe whichis readily removable for removing the upper members andpermitting the release of the outer end of the shaft 22, which, when themachine is assembled, is received infthe bearings 33 and 34.

. Pivotallyv mounted on the opposite sides of theupright member 11 arebrackets 36 and 1-} 36 which support a table'37 having a notch I 3'7? toreceive the roller 47. On the-"outer upper portion of the brace 29 arebrackets 38 for supporting the right-hand end of said table, "whichprojects beyond the shaft 22.

It will be seen that the table maybe swung upwardly and downwardly witha pivotalmovement with the brace 29. j The edges of the table'adjacenttothe cutters hereinafter mentioned, are beveled as at 39. I

Pivotallymounted in the upperportio'n shown in Fig. l.

of the upright 11 is a supporting brace 30,

which has one end projecting beyond the pivot 41 and connected with aspring. 42 The brace 40 extends downwardly and laterally, as shown inFig;

1, and has at its'outer end a socket 43in V V which are received upperand lower bearmg members 44 and 45. The lower bearing 45 is held inpositionby means of a cotter pin 46, which is readily removable.

' V The outer end of the shaft 23 is received 7 between the bearings 44and 45. On the shafts 22 and 23.a-re rollers 47 and 48, in

which are longitudinal grooves '49. The

grooves 49 of each roller are preferably arranged diametrically oppositeto each other,

the upright.

as shown in Fig. 3. V I

Connected with the end of the brace on the left-hand side of the pivot41, is a cable the fact that the slot 1 9 is elongated.

' On the rollers 47 and 48'are mounted'cutting devicesfa pair of whichare shown in Fig, 3. In Fig. 8 I have shown the cutting devices in frontelevation. The lower cutting device has a hub 53, on which is the hollowannular diemember 54 forming the female element of the cutting die,provided with the connected zig zag grooves The upper cutting member hasa similar hub 56 and a die member 57 having the zig zag cut ting bladeor element 58 forming a cont1nu ouscutting blade. The cutting edges ofthe "blade 58 are curved, as at '59, as illustrated in Fig; 8, from sideto side, so that the sections of the cutting blade 58 at the con-."nected portions thereof, as at 60, project farther from the roller 48thando the cen- 'tral portions of the respective sections of saidcutting .blade. The thickness of'the blade 59 is less than the width ofth'e'groove' to avoid'cutting with a shearing cut; The

hubs of the cutting members are provided with internal ribs or splines61, which slide in the grooves49.

i This particular feature of the construction of cutting device isimportant, for the 1 reason that itis desirable to cut the leatherbut-not-tocut the "fur, and whereashea'ringcutis employed the fur orhair would In order to hold the hide taut between -thecutting members, tpermit the hidgto betcut neatly without the employment of-a "shearingaction, I have provided the followingmeans:

: On' each roller I'mount'a'gripping roller 62, which is slidablyplacedon the roller 48 or 47, asthe case may be. The respective 47, sothat the hide may be gripped between the gripping rollers on therespective'rollers 47 and 48, for holding it taut during the cuttingoperation. The rollers 62 are pro vided-with pins or the like 63, whichproject into the grooves 49 for holding the gripping rollers againstrotation.

.J. 7 Two sets or cuttlngdevlces and gripping gripping rollers 62 on theroller register a .with the respective rollers 62 on the roller rollersmay be mounted on the rollers 47 and r 48, if desired, so that two outsmay be made on a hide at one time,'where that is desirable.

In Fig. 4 I have shown a slightly modiranged in slightly differentmanner than that shownin Fig. 8. The cutting member shown in Fig; 4;isindicated by the reference character 64.

In the practical use of my improved machine, the machine is assembled inthe manner heretofore described. The gripping roll: ers and cuttingmembers may be placedon the rollers 47 and 48, and adjusted thereon without difficulty. Itwill be noted that the brace 29 may be lowered at itsouterend against the. pressure of the spring 31, and that the tablemembers 37 and 37" will swing downwardly with the brace 29. The cotterpin 85 may be removed from the brace 29 and the bearing member 84 beforethe brace is lowered, and itis obvious that when the brace is loweredtheend of the shaft 22 will be accessible for mounting the gripping r0ll--ers and the cutter members thereon.

brace 29 may then be raised, and'the upper bearing member 34 replacedposition.

For placing the gripping rollers and the cutter member on the upperroller 48, the operator may puthisfooton the lever 51 forraising'theouter-end of theroller 48, whereupon the cotter pin 46 may beremoved and the bearing 45 taken out, after which'the shaft 23 maybelowered slightly formaking it possible to place on it the grippingrollers and the cutter member. l After the gripping rollers and cuttingmembers have been assembled, the'sh'aft23; may be placed in properposition with relation to the bearing 44, and the bearing 45 replaced,as shown in Fig.v 7. The roller 48 is then'lowered into its horizontalposition, and the m'achineis ready for use.

In cutting a h'i'de 65, the hide may be jfied form of the malecutting'member, 1n .WhlGll the cutting blade sections are ar- The placedon the table member 37 and shoved The hide is ordinarily' cut be cleanlycut but thehair will not be cut.

It is necessary. in cutting 9. hide, ordinarily to out on irregularlinesin order that the seam may not appear when two'sectlons of .hide aresewed together along their cut edges. It is also necessary that the hidebe i out without, cutting the' hair, and the diffilines.

culty of making machine for thepurpose of cutting hides ingtliismai'iner willbe ob vious in view er those facts.

Mymacliine is'of simple construction, and

will not easily get "out of order. The cutter members may be adjusted onthe rollers 47 and 48, for effecting cutting on the desired With amachine of this kind the GX- pense of cutting'a 'hidewill be verymaterially reduced.

Some changes may be made in the construction and arrangement of theparts of my improved zig zag hide cutting machine without departing fromthe real spirit and 1 purpose of my invention, and it is my intenthewidth of the groove being greater than the thickness of the knife, andmeans on the opposite sides of each cutting member for gripping andengag ng a hide for holding it taut.

2. In a device of the class described for cutting hairy hides, asupport, a pair of shafts mounted thereon, cutting devices supported onsaid shafts, said cutting devices being arranged to cut hides on zig zaglines,

and having coacting cutting members or dies 7 provided respectively withan irregular groove and an irregular knife, substantially as shown, andgripping rollers supported on said shafts on opposite sides of saidcutting knife, for'engaging a hide and holding it taut during thecutting operation.

3. In a device of the class described a support, a pair of shaftsmounted thereon,

cutting devices supported on said shafts, said cutting devices beingarranged to cut hides a on zig zag lines, and having coasting cutt ngmembers or dies provided respectively with an irregular groove andanirregular knife,

substantially as shown, said groove being of greater width than thethickness of said knife, and means for holding a hide taut during thecutting operation. V 4:. In a device of. the class described, anupright, a shaft supported thereon near one 7 end of said shaft, forrotation, a roller on said shaft, an adjustable support for the otherend of said shaft, a second shaft mounted on said upright near one endof said shaft, an adjustable support for the other end of said secondshaft, a roller: on said sec-v ond shaft, coacting cutting devicesmounted on said rollers for cutting hides on irregular lines, andgripping rollersQoneach of said first-named rollers, on opposite sidesofthe cutting devices, for gripping and holding a 1 hide taut. I. j i

Ina device the class described, an up -ight, a shaft supportedthereonnear one end of: said shaft,.'for iotation, a. roller on said shaft,'air adjustable support for the other end of said shaft, a second,shaftf "mounted on said uprightnear one end of said shaft, an adjustablesupport for the other end of saidsecond shaft, a roller on said sec: ondshaft, coacting cutting devices mounted v on said rollers for cuttinghides on irregular, 1

lines,'and gripping'rollers on each of said first-named rollers, onopposite sides of the cutting devices, for gripping and holding a e hidetaut, said cutting devices and gripping rollers being slidably butnon-rotatably mounted on saidfirst-named rollers.

6. In a device of the class described, an 1 upright, a shaft supportedthereon nearone end ofsaid shaft, for rotation, a roller on;

said shaft, an adjustable support for the other end of said shaft, asecond shaft mounted on said upright near one end of said shaft, anadjustablesupport for the other end of said second shaft, a roller onsaid sec-, ond" shaft, coacting cutting devices mounted on said rollersfor cutting hides on irregular lines, gripping rollers on each of saidfirst named rollers, on opposite, sides of the cutting devices, forgripping andholding a hide taut, a motor onsaid upright, means forimparting movement from said motor to one of said shafts, and gear ngdevices for connecting said shafts.

7. In a device of the class described,

upright, a shaft supported thereon near one end of said shaft, forrotation, a roller on said shaft, anadjustable support for the "otherend of said'shaft, a second shaft mounted on said uprightne'ar one endof said shaft, an adjustable support for the other end of said secondshaft, a roller on said second shaft, coacting cutting devices mounted von said rollers for cutting hides on irregular lines, and grippingrollers on each of said first-named rollers, on opposite sides ofthecutting devices, for gripping and holding a hide taut, one of saidshafts beingpivota'lly and slidably supported on said upright.

8. In a. device of the class described, an'

upright, a shaft mounted nearone end of said-upright and projecting awayfrom the upright, a second shaft pivotally and slidably' mounted onsaidjupright near one end of the second shaft,;gearingdevices'forconnecting said shafts, means for imparting motion to one ofsaid shafts, a pivoted support mounted on said uprights and connectedwith the outer end of said second shaft, a foot leverv operativelyconnected with said last described support, cutting devices supported onthe respective shafts, and gripping v I ifollers 2m oppesite sides ofthe cutting de- "Vices, for holdinga hide taut during the cuttingprocess.

7 9. In a machine of the classdescribed; means for holding a hide withthe fur there-' on taut, cutting devices interposed'between' said meansand comprising a membe'r p 'omember adapted to'enter said groove spacefrom'the edges thereof for cutting a; hide'10 V Without cutting the furthereon; M

Des Moines, Io a, May 28,1920. i

HWENZL WAsH;

